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Senior Developer Canada Jobs (Hybrid work)

120 Job Offers

Senior Full Stack Developer
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Join Citi in Mississauga as a Senior Full Stack Developer. You will build scalable microservices and React-based front-ends for a global client platform. This role requires 5-8 years of Java/Spring and ReactJS expertise. Shape the future of a large-scale, modern technology stack.
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Location
Canada , Mississauga
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Salary
94300.00 - 141500.00 USD / Year
https://www.citi.com/ Logo
Citi
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Until further notice
Senior Java Developer
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Join a leading team in Mississauga as a Senior Java Developer. Utilize your 5+ years of Java and Spring Boot expertise to build enterprise-scale applications and REST APIs. Collaborate with global teams on CI/CD, Kubernetes, and innovative financial services solutions. This is a key role in devel...
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Location
Canada , Mississauga
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Salary
94300.00 - 141500.00 USD / Year
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Senior Python Developer
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Lead Python development for innovative Credit Risk solutions at Citi in Mississauga. Utilize your 6+ years of Python/FastAPI expertise to design enterprise applications with LLM and RAG architectures. Collaborate with global teams on cutting-edge technology in the financial sector.
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Location
Canada , Mississauga
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Salary
120800.00 - 170800.00 USD / Year
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Senior Angular Frontend Developer
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Lead Angular development for high-impact applications at a senior level in Mississauga. This role requires expert proficiency in Angular 11+, TypeScript, and modern frontend design patterns. You will leverage 6-10 years of experience to analyze systems, lead projects, and drive technical excellence.
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Location
Canada , Mississauga
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Salary
120800.00 - 170800.00 USD / Year
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Senior Java React Full Stack Developer
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Join Citi in Mississauga as a Senior Java React Full Stack Developer. Leverage 6+ years of experience with Java Spring Boot microservices and React.js/TypeScript frontends. Design scalable APIs and deploy on AWS/OpenShift, with a focus on innovative AI and LLM integration.
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Location
Canada , Mississauga
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Salary
94300.00 - 141500.00 USD / Year
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Senior Application Full Stack Developer
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Seeking a Senior Full Stack Developer in Mississauga to lead high-volume, low-latency Java applications for Capital Markets. This role requires 5+ years in Java, Angular, and Oracle RDBMS, with Weblogic EJB expertise. You will design, develop, and provide L3 support for critical inventory managem...
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Location
Canada , Mississauga
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Salary
94300.00 - 141500.00 USD / Year
https://www.citi.com/ Logo
Citi
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Senior Java Technology Developer
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Lead the modernization of critical Credit Risk platforms as a Senior Java Developer in Toronto/Mississauga. This senior role requires deep expertise in Core Java, microservices, and cloud-native architectures. You will re-engineer monolithic systems, leveraging TDD and Agile methodologies.
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Location
Canada , Mississauga; Toronto
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Salary
120800.00 - 170800.00 USD / Year
https://www.citi.com/ Logo
Citi
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Until further notice
Senior Big Data Pyspark Developer
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Join our team in Mississauga as a Senior Big Data PySpark Developer. Leverage 5-6 years of experience with Java, Spring Boot, and Microservices. Build robust solutions using Angular, Kafka, and cloud platforms in a collaborative environment.
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Location
Canada , Mississauga
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Salary
94300.00 - 141500.00 USD / Year
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Senior Software Developer (HVAC)
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Join GM as a Senior Software Developer (HVAC) in a hybrid role based in Markham. You will lead embedded software design and testing using C/C++ for automotive systems. This role requires 5-7 years' experience with embedded development, CAN/LIN/Ethernet logs, and Agile/Scrum. We offer a competitiv...
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Location
Canada , Markham
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Salary
115000.00 - 164600.00 USD / Year
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General Motors
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Senior Scrum Lead and Software Developer - Exterior Lighting Controls
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Lead the Agile process and develop embedded software for next-generation vehicle lighting systems. This senior dual-role combines Scrum Master duties with hands-on C programming for automotive controls. Join a global team in Markham/Oshawa, Canada, with competitive benefits including pension matc...
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Location
Canada , Markham; Oshawa
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Salary
115000.00 - 164600.00 USD / Year
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General Motors
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Until further notice
Senior Controls Developer - Steering Embedded Software
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Lead the development of embedded software and control algorithms for next-generation vehicle steering and chassis systems at GM. This senior role in Markham requires expertise in C, MATLAB/Simulink, and automotive controls. Design, test, and integrate software that defines vehicle dynamics and dr...
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Canada , Markham
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Salary
111500.00 - 164600.00 CAD / Year
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General Motors
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Until further notice
Senior Java Developer
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Join Citi's acclaimed Technology team as a Senior Java Developer in Mississauga. Leverage your 4+ years of Java expertise with Spring Boot, Kafka, and Kubernetes to build critical financial systems. You will drive the full development lifecycle, from analysis to implementation, in a high-visibili...
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Location
Canada , Mississauga
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Salary
94300.00 - 141500.00 USD / Year
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Senior Java Developer - Risk
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Seeking a Senior Java Developer for Risk Systems in Mississauga. This role focuses on building strategic, low-latency applications using Java, Microservices, and Cloud (AWS/OpenShift). Ideal candidates have 5+ years of Java, Spring Boot, and modern architecture experience. Join a global team to d...
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Location
Canada , Mississauga
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Salary
94300.00 - 141500.00 USD / Year
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Senior Quality Assurance Developer - Simulation
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Lead automated testing strategy for Vehicle Mechatronics simulation environments in Markham. This senior QA role requires 5+ years' experience with Python/C++ and CI/CD tools like Jenkins. You will ensure quality and reliability for co-simulation platforms, supported by comprehensive benefits and...
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Location
Canada , Markham
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Salary
97800.00 - 146600.00 CAD / Year
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General Motors
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Until further notice
Senior Vehicle Dynamics Controls Developer
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Lead the development of advanced vehicle dynamics controls for driveline systems, including trailer braking and eLSD, in Markham/Oshawa. This senior role requires a BS in Engineering, 3+ years of controls experience, and expertise in MATLAB/C. Enjoy comprehensive benefits, pension matching, and t...
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Location
Canada , Markham; Oshawa
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Salary
115000.00 - 164600.00 USD / Year
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General Motors
Expiration Date
Until further notice
Senior Java Developer Fixed Income
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Join our Fixed Income Data Platform Team in Mississauga as a Senior Java Developer. You will build a next-generation, low-latency platform using Java, Apache Flink, Kafka, and LLMs. This role involves designing high-performance systems for quantitative scientists and traders. We seek a passionate...
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Location
Canada , Mississauga
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Salary
94300.00 - 141500.00 USD / Year
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Senior Python Developer
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Join Citi's Wholesale Credit Risk Technology team in Mississauga as a Senior Python Developer. Design and deliver innovative solutions using Python, FastAPI, LLMs, and RAG architecture. Leverage 5+ years of experience in enterprise applications within Financial Services. Collaborate with global t...
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Location
Canada , Mississauga
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Salary
94300.00 - 141500.00 USD / Year
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Senior Lead Frontend UI Developer
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Lead the frontend development of complex applications using Angular, React, and Node.js in Mississauga. This senior role requires 6+ years of experience with modern frameworks, Docker, and distributed systems. You will drive project implementation, system design, and mentor teams in a collaborati...
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Location
Canada , Mississauga
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Salary
120800.00 - 170800.00 USD / Year
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Senior Embedded Logging Software Developer
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Join General Motors Canada as a Senior Embedded Logging Software Developer. Design and integrate embedded data pipelines across Android, Linux, and QNX platforms using C/C++ and Java. Enjoy comprehensive benefits in Markham or Oshawa while building scalable vehicle observability systems.
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Location
Canada , Markham; Oshawa
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Salary
115000.00 - 164600.00 USD / Year
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General Motors
Expiration Date
Until further notice
Senior Java Developer
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Location
Canada , Mississauga
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Salary
94300.00 - 141500.00 USD / Year
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice

About the Senior Developer role

Senior Developer Jobs represent the pinnacle of technical expertise and leadership within software engineering teams. Professionals in these roles are seasoned experts who not only write high-quality code but also architect complex systems, guide technical strategy, and mentor less experienced engineers. They are the crucial bridge between high-level business objectives and practical, robust technical implementation, ensuring that software solutions are scalable, secure, and aligned with long-term organizational goals.

Typically, a Senior Developer is responsible for the entire software development lifecycle of significant components or applications. This includes leading the design and architecture of new systems, often leveraging modern paradigms like microservices and event-driven architecture. They write, review, and debug complex code, setting standards for quality and maintainability. A key part of their role involves making pivotal technology stack decisions, selecting frameworks, databases, and tools that best fit project requirements. They collaborate closely with cross-functional teams, including product managers, business analysts, and other stakeholders, to translate business needs into technical specifications. Furthermore, Senior Developers are expected to drive best practices in coding, testing, and deployment, frequently overseeing CI/CD pipelines and advocating for DevOps and security principles (DevSecOps).

The common skill set for these jobs is both deep and broad. Mastery of one or more core programming languages (such as Java, Python, C#, or JavaScript) and their associated ecosystems is fundamental. Expertise in relevant frameworks (e.g., Spring Boot, .NET Core, React, Angular) is essential. Senior Developers possess a strong grasp of system design principles, database management (both SQL and NoSQL), and API design (REST, GraphQL). Experience with cloud platforms (AWS, Azure, GCP), containerization (Docker), and orchestration (Kubernetes) is increasingly standard. Beyond technical prowess, soft skills are critical: leadership, clear communication, effective mentorship, problem-solving, and the ability to manage time and priorities across multiple projects are what distinguish a senior professional.

Typical requirements for Senior Developer jobs often include a bachelor’s degree in computer science or a related field (or equivalent practical experience) and a substantial track record, usually between 5 to 10+ years of progressive software development experience. Demonstrated experience in leading development initiatives, making architectural decisions, and working within Agile/Scrum methodologies is commonly sought. The role demands a proactive, strategic thinker who stays abreast of emerging technologies and can drive innovation while ensuring system reliability and performance. For those seeking to advance their impact beyond pure coding into areas of design, strategy, and team leadership, exploring Senior Developer jobs is the definitive next step in a thriving tech career.